ICU 71.1 71.1

rbtz.h
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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 *******************************************************************************
5 * Copyright (C) 2007-2013, International Business Machines Corporation and *
6 * others. All Rights Reserved. *
7 *******************************************************************************
8 */
9 #ifndef RBTZ_H
10 #define RBTZ_H
11
12 #include "unicode/utypes.h"
13
14 #if U_SHOW_CPLUSPLUS_API
15
21 #if !UCONFIG_NO_FORMATTING
22
23 #include "unicode/basictz.h"
24 #include "unicode/unistr.h"
25
26 U_NAMESPACE_BEGIN
27
28 // forward declaration
29 class UVector;
30 struct Transition;
31
38 class U_I18N_API RuleBasedTimeZone : public BasicTimeZone {
39 public:
49 RuleBasedTimeZone(const UnicodeString& id, InitialTimeZoneRule* initialRule);
50
56 RuleBasedTimeZone(const RuleBasedTimeZone& source);
57
62 virtual ~RuleBasedTimeZone();
63
69 RuleBasedTimeZone& operator=(const RuleBasedTimeZone& right);
70
79 virtual bool operator==(const TimeZone& that) const override;
80
89 virtual bool operator!=(const TimeZone& that) const;
90
107 void addTransitionRule(TimeZoneRule* rule, UErrorCode& status);
108
118 void complete(UErrorCode& status);
119
127 virtual RuleBasedTimeZone* clone() const override;
128
153 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
154 uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const override;
155
175 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
176 uint8_t dayOfWeek, int32_t millis,
177 int32_t monthLength, UErrorCode& status) const override;
178
201 virtual void getOffset(UDate date, UBool local, int32_t& rawOffset,
202 int32_t& dstOffset, UErrorCode& ec) const override;
203
211 virtual void setRawOffset(int32_t offsetMillis) override;
212
220 virtual int32_t getRawOffset(void) const override;
221
228 virtual UBool useDaylightTime(void) const override;
229
230 #ifndef U_FORCE_HIDE_DEPRECATED_API
231
244 virtual UBool inDaylightTime(UDate date, UErrorCode& status) const override;
245 #endif // U_FORCE_HIDE_DEPRECATED_API
246
255 virtual UBool hasSameRules(const TimeZone& other) const override;
256
265 virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
266
275 virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
276
285 virtual int32_t countTransitionRules(UErrorCode& status) const override;
286
303 virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
304 const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const override;
305
310 virtual void getOffsetFromLocal(
311 UDate date, UTimeZoneLocalOption nonExistingTimeOpt,
312 UTimeZoneLocalOption duplicatedTimeOpt,
313 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const override;
314
315 private:
316 void deleteRules(void);
317 void deleteTransitions(void);
318 UVector* copyRules(UVector* source);
319 TimeZoneRule* findRuleInFinal(UDate date, UBool local,
320 int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
321 UBool findNext(UDate base, UBool inclusive, UDate& time, TimeZoneRule*& from, TimeZoneRule*& to) const;
322 UBool findPrev(UDate base, UBool inclusive, UDate& time, TimeZoneRule*& from, TimeZoneRule*& to) const;
323 int32_t getLocalDelta(int32_t rawBefore, int32_t dstBefore, int32_t rawAfter, int32_t dstAfter,
324 int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
325 UDate getTransitionTime(Transition* transition, UBool local,
326 int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
327 void getOffsetInternal(UDate date, UBool local, int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt,
328 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& ec) const;
329 void completeConst(UErrorCode &status) const;
330
331 InitialTimeZoneRule *fInitialRule;
332 UVector *fHistoricRules;
333 UVector *fFinalRules;
334 UVector *fHistoricTransitions;
335 UBool fUpToDate;
336
337 public:
349 static UClassID U_EXPORT2 getStaticClassID(void);
350
362 virtual UClassID getDynamicClassID(void) const override;
363 };
364
365 U_NAMESPACE_END
366
367 #endif /* #if !UCONFIG_NO_FORMATTING */
368
369 #endif /* U_SHOW_CPLUSPLUS_API */
370
371 #endif // RBTZ_H
372
373 //eof
icu::TimeZone::operator==
virtual bool operator==(const TimeZone &that) const
Returns true if the two TimeZones are equal.
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
icu::TimeZone::inDaylightTime
virtual UBool inDaylightTime(UDate date, UErrorCode &status) const =0
Queries if the given date is in daylight savings time in this time zone.
icu::TimeZone::operator!=
bool operator!=(const TimeZone &that) const
Returns true if the two TimeZones are NOT equal; that is, if operator==() returns false.
Definition: timezone.h:521
U_I18N_API
#define U_I18N_API
Definition: utypes.h:301
icu::TimeZone::setRawOffset
virtual void setRawOffset(int32_t offsetMillis)=0
Sets the TimeZone's raw GMT offset (i.e., the number of milliseconds to add to GMT to get local time,...
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:269
icu::BasicTimeZone::clone
virtual BasicTimeZone * clone() const override=0
Clones this object polymorphically.
icu::BasicTimeZone
BasicTimeZone is an abstract class extending TimeZone.
Definition: basictz.h:38
icu::TimeZone::getDynamicClassID
virtual UClassID getDynamicClassID(void) const override=0
Returns a unique class ID POLYMORPHICALLY.
icu::TimeZoneRule
TimeZoneRule is a class representing a rule for time zone.
Definition: tzrule.h:36
icu::TimeZone
TimeZone represents a time zone offset, and also figures out daylight savings.
Definition: timezone.h:133
icu::TimeZone::getStaticClassID
static UClassID getStaticClassID(void)
Return the class ID for this class.
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:295
icu::BasicTimeZone::getNextTransition
virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const =0
Gets the first time zone transition after the base time.
UClassID
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition: uobject.h:96
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
basictz.h
C++ API: ICU TimeZone base class.
icu::TimeZone::getOffset
virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day, uint8_t dayOfWeek, int32_t millis, UErrorCode &status) const =0
Returns the TimeZone's adjusted GMT offset (i.e., the number of milliseconds to add to GMT to get loc...
icu::InitialTimeZoneRule
InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning...
Definition: tzrule.h:202
icu::BasicTimeZone::countTransitionRules
virtual int32_t countTransitionRules(UErrorCode &status) const =0
Returns the number of TimeZoneRules which represents time transitions, for this time zone,...
icu::TimeZoneTransition
TimeZoneTransition is a class representing a time zone transition.
Definition: tztrans.h:35
icu::BasicTimeZone::getOffsetFromLocal
virtual void getOffsetFromLocal(UDate date, UTimeZoneLocalOption nonExistingTimeOpt, UTimeZoneLocalOption duplicatedTimeOpt, int32_t &rawOffset, int32_t &dstOffset, UErrorCode &status) const
Get time zone offsets from local wall time.
UTimeZoneLocalOption
UTimeZoneLocalOption
Options used by ucal_getTimeZoneOffsetFromLocal and BasicTimeZone::getOffsetFromLocal() to specify ho...
Definition: ucal.h:1626
UDate
double UDate
Date and Time data type.
Definition: utypes.h:203
icu::RuleBasedTimeZone
a BasicTimeZone subclass implemented in terms of InitialTimeZoneRule and TimeZoneRule instances
Definition: rbtz.h:38
icu::BasicTimeZone::operator=
BasicTimeZone & operator=(const BasicTimeZone &)=default
Copy assignment.
icu::TimeZone::useDaylightTime
virtual UBool useDaylightTime(void) const =0
Queries if this time zone uses daylight savings time.
icu::TimeZone::hasSameRules
virtual UBool hasSameRules(const TimeZone &other) const
Returns true if this zone has the same rule and offset as another zone.
unistr.h
C++ API: Unicode String.
icu::BasicTimeZone::getPreviousTransition
virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const =0
Gets the most recent time zone transition before the base time.
icu::BasicTimeZone::getTimeZoneRules
virtual void getTimeZoneRules(const InitialTimeZoneRule *&initial, const TimeZoneRule *trsrules[], int32_t &trscount, UErrorCode &status) const =0
Gets the InitialTimeZoneRule and the set of TimeZoneRule which represent time transitions for this ti...
icu::TimeZone::getRawOffset
virtual int32_t getRawOffset(void) const =0
Returns the TimeZone's raw GMT offset (i.e., the number of milliseconds to add to GMT to get local ti...